Browsing by Author "Sarkar, S"

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    Khovanov homology and knot Floer homology for pointed links
    (Journal of Knot Theory and Its Ramifications, 2017-02) Baldwin, JA; Levine, AS; Sarkar, S
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    On transverse invariants from Khovanov homology
    (Quantum Topology, 2015) Lipshitz, R; Ng, L; Sarkar, S
    © European Mathematical Society. In [31], O. Plamenevskaya associated to each transverse knot K an element of the Khovanov homology of K. In this paper, we give two re_nements of Plamenevskaya’s invariant, one valued in Bar-Natan’s deformation (from [2]) of the Khovanov complex and another as a cohomotopy element of the Khovanov spectrum (from [20]). We show that the first of these refinements is invariant under negative flypes and SZ moves; this implies that Plamenevskaya’s class is also invariant under these moves. We go on to show that for small-crossing transverse knots K, both re_nements are determined by the classical invariants of K.
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    Social Upgrading in Mobile Phone GVCs: Firm-level Comparisons of Working Conditions and Labor Rights
    (Labour in Global Value Chains in Asia, 2016-11-01) Lee, J; Gereffi, G; Lee, SH